Booking at the last minute is a great way to get the best deals on cheap airfare and hotels in Las Vegas. Visit travel sites to look for last minute deals, or make your own deal using sites like Priceline that allow you to bid on a hotel room or flight. Hotels want to sell every room, and airlines want to sell every seat so they will sometimes offer low prices when they are not sold out. If your schedule is flexible, take advantage of this.
You can eat cheaply in Las Vegas by avoiding the high-end casino restaurants and heading toward food courts and coffee shops instead. Many casinos offer deals to get customers in the door, like the $3 hot dog and beer special at O'Shea's casino or the 99 cent hot dog special at Mermaids Casino. Ellis Island offers breakfast for $1.95, and you can get a $2 burger and fries special between midnight and 6 a.m. at The Burger Joint in The Flamingo. Buffets can be economical for big eaters.
Casinos on the Las Vegas Strip can be expensive. You can find a good deal on a hotel near the strip by booking just a few blocks away. Look for hotel chains like Super 8 or Motel 6. Groups of people should consider renting a house for the weekend.
Much of what makes Las Vegas the place for tourists can be seen for free. Simply walk down the strip at night for some of the best people watching anywhere. The Bellagio has a water fountain that dances to music, and The Mirage has a volcano that erupts at scheduled times. MGM offers guests free lion viewing. You can fill a weekend just seeing these sites.